Really have no idea.
I would propose you to downgrade your firmware from your current 701 (I didn't even had an idea it was released) to more common 681, or even 669U - but I have no idea how will CSR perform under "6xx" firmwares.
I really propose you to continue your quest overthere on Hardware forum, because Thomas from Fanatec often lurkes there and he can be off much help.
Ask there is it possible to downgrade CSR from 701 to 681 without consequnces, it culd solve your problems. I happen to have the heaviest model of all - GT2 - and I am pretty satisfied with FFB level.
Of course, it is not "strong" as Logitech DFP, but you have to know how there is no new wheels that have "strong" or "direct" FFB as DFP. DFP uses really old technology of gear-driven FFB, which is very strong but is not precise, nor allows for full sensation of FFB effects.
Also, DFP have a really small wheel-diameter and because of that you can feel the FFB much "more" and "stronger". When I first went from DFP to Logitec G25 I had the same feeling as you have today - like there is no FFB. But that is just an illusion. Once you get use to the more subtile and more sensational FFB of modern FFB wheels, you try to come back to DFP. It will feel like a lifeless grinder to you.
I think you just need to adapt on the different sensation. DFP is really one heavy-MOFO and it was good in creating an FFB sensation in 2004. However, overall TouchSense software has went 4 transformations since that time and FFB effects we have today are really not possible to create with old-FFB tech of DFP.
Also, from what I've read, users of CSP that had Fanatec GT2/PWST models before are extremely satisfied with the overall FFB sensation compared tu previous lineup, so I really starting to think your impression just comes down from recent DFP experience which is not really comparable with today technology-standards.
EDIT: And also this:
Overthere on Hardware forum you asked about FFB on X360. Besides that "trick" I wrote about, there is also one more thing you need to be clear with: FFB effects on X360 console - as a console - are much less pronounced than on PS3/PC.
Xbox360 have hardware restriction over creating a proper FFB effects as on PS3/PC. Result is different sensation of FFB effects which can't really be compared with one on PS3/PC. You just have to live with that untill Microsoft decide to change their BIOS-libraires and allow for HID-force feedback instead of curent XID. We all hope it will happen on the NextBox, because they're already destroyed one whole genre on their console because of their crazy "XID" policy.